I've just realised that my description can be ambiguous. I don't mean I've lost the colours of the connections (they are still there and they can be changed just fine). I'm referring to the favourite colours that you can save in the advanced colour picker to be used later.

Ok, different servers with the same colors. Looks superflous somehow. I should only add unique colors, and label them with the first session name I find. Or do you have some better idea for the labels?

If you're unable to reproduce it feel free to ask for whatever you need can help. For instance, I could send you privately a redacted export of my saved connections. Or I can open a GitHub ticket if you can't address this right now.